A fubuntu is the prototype of a
product rapidly built which tries to emulate all the intended features.
While it is a compelling idea and such artefact can be useful to showcase the latest thinking and do user
testing, as the features grow this can easily become hard to manage hence not much faster to iterate than the
product itself.
The term was coined by the design team in Ubuntu who started developing an Adobe Flash version of their desktop operating system but then stopped for its costly maintenance and its poor performance.